Safety envelope



20. 192; 2 Sheets-Sheet 1 G. DouTNEY SAFETY ENVELOPE Filed Dec Oct.l 16,

f GEORGE Daun/Ey WITNESSES oct. 16,1923. 1,470,715 G. DOUTNEY f u SAFETY ENVELOPE Filed Dec. 2o. 1921 2 sheets-sheet 2 IN1/EMM /5 /Z GEORGE Door/viv framers Patented @et i6, i923.

wens

GEORGE DOUTNEY, or BROOKLYN, NEW YORK;

SAFETY ENVELOPE. l

application nid'necember ad, i921. serial no. 523,734.

To 'all whom t may] concern:

- Be it lrnovvnthat I, Gno'nonDo'U'rNnY, a citizen or Canada, and a resident of the' city of New York, borough ofV Brooklyn, in the county of Kings and Stat-e olfl New York,

khave invented Va new` and Improved Safety y Envelope, of which the 4following is full, 'n clear, 'and exact description.

This invention relates to envelopes Vand particularly Vto envelopes which cannot be 'opened Without being mutilated and has for ari object to'provdc a structure which is extremely simple but easily manufactured and which may be easily closed.

`Another 'object ofthe invention isftov pro.

vide an envelope'in Whichfafhool and ypocket structure is used :tor locking the `flap closed, the arrangement being such .that

reinforcing and retaining tabs cve-act withv the hook for holding the saine in YYYproper operative position.

`A` further @meet of uieawenuoi1- to provide, an envelope in which there vis pro- V videdno't only a hook lock but a'. locking lbody section arranged in'sucha manner as to prei'zent'extraction VofV of the contents While-the' lock is'propefrly functioning.

' in the accompanying drawings#-r Figure 1 is Aa. rear view vof an envelope constructed according tothe 'present' invenf YFigure 2 is a rear vieiv of, the envelope shovvn. in F igurc llbut ivith the y'iclap sho'ivn inta-n open position.

` trated in Fiofu're 5.

Figure Syvis a fragmentary 'viewr looking at the pocket shown in Figure 2 from the opposite direction. y

Figure e is asectional vieiv through Figurel approximately on line 4-4, the saine beingl on a greatly enlarged scale. l

Figure 5 is a plan View of the blank used vin' forming'the'envelope shown in Figures Figure 6 is a plan View of a blank ofthe pocket shownin Figure 3.V

Figure 7 is a' perspective view of the pocket formed from the blank shown in Figure 6. Y 4 Figure Sis a blank of anY envelope which shows ah slight modified fornito that illus- F igure`-9f is a f aginentary. view-oil2 the blank shown vin- Figure 1 `il'liistrating hovv the Apofzlretavill vappear when folded.

Figure 410 is a front View on a slightly 'tia'lly the' same size as the bo'dyl2.V4 *Side flaps .mmm 1 1 and V5 `'extend from the body 2 Jfor the full vWidth of the body fora short distance,'each of saidflaps however, being out away atG topresent restricted tongues or, extensions 7. These restricted tongues or extensions overlap -as shown in Figure 2 and are held together by suitable adhesive as wellas held to' the back 3 by adhesive. The b'ack 3 is provided With a slit or small slot 8 through ivhich the tongue 9 extendswhen the envelop'e is folded asshovvn in Figure 1 ready .5

for I'nailing'g.Y Arranged on the inner surface ofthe' back 3 is a pocket'ldivhich pocket formed as shown inFigu'rel 6, namely, with acentralsecton' 11 and two side sec-y tions 12 and v13 which when v folded overthe section 11 will present a structure as shown in Figure2, said folded kniembefrs 12 andl" bcingheld together suitable adhesive] ,It vvill benoted that a Vflattened tubular structure le is produced by this folding action and a supporting projectionfl, which supporting projection is adapted to receive a metallic staple 16 which extendsl through L the overlapped `eX,ten/sion 7 and through lthe' projection ,15; The pocket l0 is thus .arf

' ranged so that the upper end of the iiattened tubular structure '1e will register vvithfthe4V slot 8 so that when the'ftongue 9 is injsorted asshov'vn in Figures 1 and 4, said' tongue together with the hook ends 17 and 18 .Will project not only lthrough slot` butthrough thertubulan portion 11i of vthe pocket.- The hook ends 17 and 18are` part of the metallic hook 19 which is inade of spring Yvvire' preferably :and which is arranged with springarnis or legs 20 and21 connected by the cross bar 122 which cross bar is' r`igidly clampedv in place by a I'netallic-V staple 23. similar to the staple 16. Itwill be noted that the tongue 9 is part ofthe elosing flap 2e of the envelope 'and said closing flap notched at25and 26V whereby reinforcing flaps 27 and28`aie providethsaid flaps being folded 'over the tongue 9 and secured thereto by suitable adhesive tvell as the staple 23.V

This Will reinforce thetongue 9 and cause theV aps 27 and 28 toV in effect becomepart or" the tongue. By providing the hoolr 19 and `associated parts including Athe llockingY pocket 10, the closing flap 28 cannot be opened either by an Vunauthorized or an authorized person Without tearing Vatter the Y same has once been properly closed Vas shown in Figure 1.

It Will be notedthat thevvire forming the hook ends 17 `and .18 is bent ba'clr upon -itself to present rounded members vwhich yWill readily pass into the lattened tubular portion 1d otpocl et`10 l'and be orcedtovvard each other'untilthe'y'Y reach the end Wherek upon they Will-snapoutivardly as illustrated in'Figure 1. After this has been done'the 'tongue and associated vparts' cannotV be re-V moved .Without tearing for' mutilating' 'the envelope. It is,4 of course, understoodthat the flap Ql'is provided `Withadhesive in' the usual manner sothat in addition to theV lool; provided, theliap is held closed by adhesive. By providing the staple lasdescribed and constructing the flaps e and 'and the back Y Sas shown in Figure 5, no one' can steam the Wise Without destroyinglcer'tain parts.

envelope open nor canthey openfit etheri- I the adhesive 29 and l30 Was steamed loose, a persons handfor an instrument offsome kind might be forced .upward between the outsideofjthe back 3 and `the inner surface of the iiaps` t and 5 ybut the' hand or instruv ment could not'move ove'rthe upper edgeof the back- 3 tothe contents Without tearing certain partsof thee'nvelope.

Y, In Figures 8 and 9'Will be seen amodiiied form ofthe invention iinvvhichthe blank 1 is identical with blank 1 except that the extension Iron flap* 5 is provided With an integral projection 11 similartothe Aportion Ilofthe blankshown inV Figure 6. The in'- l tegral projection ,is provided Withintegral Y section 32 hasV a supporting projection 15 i' lthrough ivliich the vstaple -16 may be passed sections 31'and'82 which completethepocket Whenffolded as shown in Figure` Qand the When the envelopeis complete or ready for use. -The hook associated Witli'tongue 9 acts as'ineans forV positively locking the tongue and closing flap in a closed position when properly positioned but to preventany loose l motion and to provide the usual sealing acform of pocket in which the front'wall of the pocket section'ld is corrugated. This corrugation is intended to expedite the insertion orn the tongue 9 by'reason ci normallyV holding the pocket slightly open.

The invention has been shown as embodied l on an ordinary paper envelope but it Will be understood that it might bev embodied on an envelope made from linen, combination of.

linen paper, Wooden containers, metal, fibers or other material or any other suitable combination thereof. The word envelope Wherever used herein is to be understood to embrace a container of any nature known: by

anyy name 'whatsoever and'made from paper,

Wood, metal or any other material yor com-V bination of materials. Vlhat'l claim is:

1.'y A safety envelope havin-g a body, a back ohthe saine size as the body provided With'a slit therein, `end Vformed' from a blank `flaps adapted to be fojlded'over saidlbacl, -a

closing `flap ormed'tvith a tongue adapted to be Vextended through said slit, fa pocket arranged interiorlyV oit" said baclr adjacent the slit so that when the closing flap is closed and the tongue projected throughsa-id slitg it will Vbe projected into Vsaid pocket, la hook carried byisaidvtongue adapted to snapV over the lower edge of said `pocket when the tongue has been inserted ully,a'znetal staple'l for securing said hook in place, and a metal lstaple Vi'or connecting' said end naps, saidV back and said poclet'togeth'er acent saidV slit. Y

'2.'In asafety 'envelope ofthe character V- projectin'g portion'having a pain'ot over- Y `described ya" lookin tonvue "comprising aV 7 D i .L b

lapping flaps diagonally placedfthereon and secured thereto,fa hook carried by. said tongue and a staple extending through said tongue, saidV overlapping Yilaps and over partY V of said hook for rigidly securing the various members rigidly together. Y y

3. Ina safetyenvelope or" the character described," a closure section ef .the envelope,

al closing Vflap therefor formed apair of Vcovergingnotches.,at the center, said notches provided, 'the material removed fromV said against said tongue, a 'hook' member carried by said tongue, and means for rigidly se-l 1 10,V v being spacedapart whereby atongue'ivill be Y naps for forming said notches beingfolded curing said hoolr member andthe folded .Y

material rigidly'together. Y Y

'45. In a safetyenvelope, a body portion forme'dwith' a front and'back substantially yot the same size and shape, the front vbeing provided With a flap at each side'ifor'inedV With'iestrictedend sections adaptedto over- Vlap each other When the flaps are folded on the body, a tongue receiving element `dis:v posed inwardly of the envelope, av staple securing said back, tongue receiving element andflaps together, said .back being formed with Va slot substantiallyinlinef'vvith the upper edge of said tongue receiving element, a closing flapv on the body, and-means on the iso y closing flap adapted to pass through said slot and tongue receiving element and engage thelower edge of said tongue receiving' felement to permanently lock the closing flap flaps being formed with an extension adapt-v ed to present a pocket when folded, said baek section having a slot which is vdisposed 1n line With the upper edger of said pocket when therparts are folded, a ltongue member forming a part of said closure flap, resilient means secured to said tongue member, said tongue member and the resilientmeans beingradapted to be inserted through said slot in said pocketsol as to permit the resilient means to'engage the lowerl edge of said pocket and thereby permanently look the 20 d 

